"He's coming off the back of a great win (against Alvarado), and I've not seen Manny Pacquiao recently – I know he beat Timothy Bradley," said Froch.

"It's a close fight," he added. "It's unbelievable that they've had so many fights together. They are both really great fighters, they are both aging athletes."

Froch said that when talking of Pacquiao-Marquez V, the age of both fighters will have to be taken into account, as Marquez is now 40 years old, while Pacquiao is now 35.

"It would be quite a fair match-up, an even match," Froch surmised. "It's unbelievable that they have fought each other so many times and are looking at fighting again, but yeah, I think it would be a great fight."

But by virtue of Marquez's recent fights, and despite his age, Froch gave the edge to the Mexican legend.

"I think Marquez, coming off the back of the wins he had, he would probably edge it, even though Pacquiao just beat Bradley," said Froch. "It's a close one, (but) I’d probably edge towards Marquez."